Surely it is the Earth that Moveth
The Book of Mormon seems to be explicitly heliocentric. In a passage expressing his frustration with mankind, Mormon writes about God (with an apparent allusion to Joshua):
14 Yea, if he say unto the earth—Thou shalt go back, that it lengthen out the day for many hours—it is done;What is this kind of statement doing in a document that purports to be ancient? Did the Nephites understand the workings of the solar system better than most of the ancients? Is it an anachronism that gives away Joseph as a fraud? Or is it possible that the scientific clarification was a commentary made during the translation process?
15 And thus, according to his word the earth goeth back, and it appeareth unto man that the sun standeth still; yea, and behold, this is so; for surely it is the earth that moveth and not the sun. (Helaman 12:14-15)
In the latest issue of BYU Studies, David Grandy argues that none of the above are correct. In his article, "Why Things Move: A New Look at Helaman 12:15" (subscription required), Grandy draws on the work of John Walton to contend that this is a case of our failure to understand ancient ways of thinking. We are the children of Newton, who think of matter as inanimate and passively following physical laws, like machines. God doesn't need to push the earth around the sun, gravity does that. In contrast, the ancients saw God's hand in all aspects of the world, including motion. If we look at the larger context of Mormon's statement, we see that he emphasizes that everything on earth obeys and moves according to God's command--except man. The verses surrounding 14 and 15 are all about how various parts of the earth (dust, hills, mountains, water) move, shake, part, rock, dry, etc, as commanded.
Grandy writes:
Rather than confirming Copernican cosmology, this verse suggests that Mormon is invoking Joshua’s event, not because Joshua’s account is scientifically inaccurate and therefore in need of correction, but because it reinforces Mormon’s own admonition that humans, being indigenous to the earth (their bodies made of the dust of the earth), should follow the many examples of responsive obedience they witness among things with which they are intimate—dust, hills, mountains, the foundation of the earth, the great deep, and so on.
This is all well and good, but Mormon specifically says, "the earth goeth back, and it appeareth unto man that the sun standeth still...for surely it is the earth that moveth and not the sun." Grandy notes that although this sounds like it assumes axial rotation and orbiting, those are assumptions that we bring to the passage. If he was like other ancients, Mormon did not share our concept of a sphere sitting in space. He would instead have pictured something like the picture to the left [image source]. The focus in these verses is on movements of the earth; it can move back and forth, and thus "goeth back." The contrast drawn with the sun is simply tailoring language to keep focus on the earth.
I'm not sure whether I buy this. I am quite sympathetic to attributing differences between scripture and science to differences in culture and worldview, so when Grandy asserts that Mormon did not share our scientific outlook, I'm on board. My trouble is that verse 15 is so suggestive to me of Copernican motion. If I try to empty my head of orbits and revolutions, does Mormon's statement make sense given the context? I guess it kind of does--maybe I just need to get used to it. I think it helps to keep in mind that Mormon referred to "the earth," not "Earth." That's a subtle but perhaps important difference.
I don't know whether he is right or not, but I think Grandy's argument is at least worth considering.
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